精灵图过渡

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        span {
            display: block;
            height: 22px;
            width: 25px;
            background: url("./HTML512/资料/bg.png") no-repeat -128px -360px;
            transition: all 2s ease 0s;
        }
        span:hover {
            background-position: -128px -399px;
        }
    </style>
</head>
<body>
    <div><span></span></div>
</body>
</html>

transtion 过渡效果

精灵图过渡